Normal Beta Number Ranges

Beta numbers are a measure used by doctors to determine if a pregnancy is progressing the way it should. These numbers are used in the early weeks, and “betas” are a measure of the level of human chorionic gonadotropin hormone, otherwise known as HCG — the “pregnancy hormone.” It's this hormone that causes you to get a positive pregnancy test.

Doctors generally look for betas to double every 72 hours.

The numbers below give you a good idea of the typical range for your betas depending on how many days ago you ovulated. Remember, though, there's a huge variation in what is “normal” for a pregnancy.

Beta Ranges Based on Days Post-Ovulation (DPO)

DPO

Average HCG

Typical Range

14

48 mIU/ml

17-119 mIU/ml

15

59 mIU/ml

17-147 mIU/ml

16

95 mIU/ml

17-223 mIU/ml

17

132 mIU/ml

17-429 mIU/ml

18

292 mIU/ml

70-758 mIU/ml

19

303 mIU/ml

111-514 mIU/ml

20

522 mIU/ml

135-514 mIU/ml

21

1061 mIU/ml

324-4130 mIU/ml

22

1287 mIU/ml

1185-3279 mIU/ml

23

2034 mIU/ml

185-3279 mIU/ml

24

2637 mIU/ml

540-10,000 mIU/ml

Further Information

Please note that, again, these are considered “typical” ranges, but in reality your numbers may be quite different. It's also important to note that numbers may be different if you used IUI, IVF, or other assisted technologies to conceive your baby.

For an interesting project that collects the beta numbers from actual pregnancies (and you can share your own numbers) please check out BetaBase. It also has comparisons between singleton beta numbers and multiples beta numbers!

(NOTE: Want the Top Easy Steps to Boosting Your Fertility? Use these 5 simple, evidence-based steps to get pregnant and carry your healthy baby to term. Get them here.)